The Hot Rubber Monkey is a re-creation of the overdriven sounds of the legendary D style ODS amp but with the HRM EQ mod. The sound and feel of a real amplifier is elusive and expensive. The HRM re-creates that authentic sound and feel. The magic comes from the bass control which resides in the very important low mid frequencies where the most expressive guitar frequencies live. All controls are interactive and give you many tone shaping options.